Breakthrough pressure method was presented in order to accurately determine the plugging position of water shutoff agent in oil reservoir.
为了能更准确地预测堵剂在油藏中的封堵位置，提出了堵剂突破压力法。
2
In addition, the matters concerning dissolving method, color fastness, resistance to oxygen bleaching, water quality and selection of leveling agent were all discussed.
Method To eliminate steam coning and water coning in production Wells of heavy oil reservoirs, Shengli oil province, HBC98 1 plugging agent for thermal production is developed.